Turn-table for cable railroads



(No Model.) Q 2 Sheets-Sheet 1.

- O. M. PORTER.

TURN TABLE FOB CABLE RAILROADS. N0. 316,482. Patented A1) 28, 1885.

Wiinesscs: 1711/6". 0r:

MWmM W a W (No Model.) 2 Sheets-Sheet 2.

O. M. PORTER.

TURN TABLE FOR CABLE RAILROADS.

No. 316,482. Patented Apr 28, 18 85.

inllliliiii Wm iillll 1 illllillllilll lllk .Wiinesses: 7 71/1/0376 01UNITED STATES PATENT OFFICE.

CHARLES M. PORTER, OF PHILADELPHIA, PENNSYLVANIA.

TURN-TABLE FOR CABLE RAILROADS.

SPECIFICATION forming part of Letters Patent No. 316,482, dated April28, 1885.

Application filed October 3. 1884. (No model.)

1' 0 at whom, it may concerni Be it known that I, CHARLES M. PORTER, aresident of Germantown, in the county of Philadelphia and State ofPennsylvania, have invented an Improved Turn-Table for Cable Railroads,of which the following is a full, clear, and exact description,reference being made to the accompanying drawings, in which- Figure 1 isatop View of my improved turntable for cable railroads. Fig. 2 is aside'view of the same; and Fig. 3 is a vertical crosssection on the line0 a, Fig. 2. Fig. 4. is a detail face view,- on an enlarged scale, ofparts of the mechanism.

The object of this invention is to enable railroad-cars that areconveyed by means of cables to be turned at right or other suitableangles, and transferred to other tracks, all by means of the cableacting upon a turn-table.

The invention consists, principally, in combining a turntable which isplaced in the intersection of tracks of cable roads with mechanism forrevolving it, which mechanism is set in motion by one of the cables.

In the accompanying drawings, the letter A represents asuitableturn-table placed in the intersection of the tracks B and O of two cableroads, D being the cable for the track 13, and E the cable for the track0. The turntable A is supported on friction-rollers, or otherwise, insuitable manner, and is represented as having a toothed edge, into whichgears a pinion, a, which is mounted upon an upright shaft, F. The shaftF carries a fixed pulley, b, which at all times is near the cable E. Gis a movable shaft, which may be pivoted in its bearing at the lowerpart, as shown I at d in Fig. 2, and which carries a loose pulley,

e. The pulleys b and e are on opposite sides of the cable E.

held at the time the Whenever the turn-table is to be revolved, theshaft G- is moved by means of a rack and lever, H I, (see Fig. 4,) or bysuitable analogous mechanism, so as to carry the loose pulley 6 againstthe cable E, causing the pulleys b e to bite the cable, whereby theshaft F will be revolved and with it the pinion a, which, gearing intothe toothed edge of the turn-table, will cause the latter to be moved.As

soon as the turn-table shall have reached the desired new position, thelever I is moved to throw the loose pulley e off the cable, therebyarresting the turntable in the new position. The degree of force withwhich the lever I is pulleys b e are biting the cable will regulate thespeed of the turning, and by biting gradually the table can be turnedwithout too strong a start.

It will be readily seen that if a car arrives upon the turntable A onthe track Git can be turned, together with the table, so that it maymove away on the track B, and that a car can as conveniently betransferred from the track B to the track 0.

I claim- 1. The combination of aturn-table with the cables D E, crossingeach other, tracks B O, crossing each other, and with mechanism,substantially as described, for turning-said turntable by means of oneof said cables, all arrangedto permit the transfer of cars from one ofsaid tracks to the other, as specified.

2. The combination of the turn-table A, cable E, shaft F, having pulleyb, shaft G, having loose pulley e, and rod H, and lever I, all arrangedfor operation substantiallyas specified.

CHARLES M. PORTER.

Witnesses:

EDWARD ILSLEY, SUsAN ILsLEY PORTER.

